optlib2c: fix wrongly generated code for --_paramdef

- param.h was not included.
- the field for description was wrong.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

misc/optlib2c

@@ -620,6 +620,11 @@ EOF
     if (defined $opts->{'selector'}) {
 	print <<EOF;
 #include "selectors.h"
+EOF
+    }
+    if ((scalar @{$opts->{'paramdefs'}}) > 0) {
+	print <<EOF;
+#include "param.h"
 EOF
     }
     print <<EOF;
@@ -968,7 +973,7 @@ EOF
       print <<EOF;
 		{
 		  .name        = "$_->{'name'}",
-		  .description = "$desc",
+		  .desc        = "$desc",
 		  .handleParam = NULL,
 		},
 EOF